/**
 * Created with IntelliJ IDEA.
 * User: 12629
 * Date: 2022/2/21
 * Time: 19:40
 * Description:
 */
class Test {
    public int a1;
    public static int a2;
}

public class TestDemo2 {
    public static void main(String[] args) {
        Test test1 = new Test();
        test1.a1++;
        test1.a2++;

        Test test2 = new Test();
        test2.a1++;
        test2.a2++;
        System.out.println(test1.a1);//?
        System.out.println(Test.a2);//?
    }
}
